<html>
  <head>
    <title>A canvas transform example</title>
    <meta name="DC.creator" content="Kamiel Martinet, http://www.martinet.nl/">
    <meta name="DC.publisher" content="Mozilla Developer Center, http://developer.mozilla.org">
    <script type="text/javascript" src="../../../../jooscript.js"></script><script type="text/javascript" src="../../../../fxcanvas.js"></script><!--[if IE]><script type="text/javascript" src="../../../../flash_backend.js"></script><![endif]--><comment><script type="text/javascript" src="../../../../canvas_backend.js"></script></comment>
    <script type="text/javascript">
      function draw() {
        var canvas = document.getElementById("canvas");
        var ctx = canvas.getContext("2d");

        var i = 0;
        var sin = Math.sin(Math.PI/6);
        var cos = Math.cos(Math.PI/6);
        ctx.translate(200, 200);
        var c = 0;
        for (i; i <= 12; i++) {
          c = Math.floor(255 / 12 * i);
          ctx.fillStyle = "rgb(" + c + "," + c + "," + c + ")";
          ctx.fillRect(0, 0, 100, 10);
          ctx.transform(cos, sin, -sin, cos, 0, 0);
        }

        ctx.setTransform(-1, 0, 0, 1, 200, 200);
        ctx.fillStyle = "rgba(255, 128, 255, 0.5)";
        ctx.fillRect(0, 50, 100, 100);
      }
    </script>
    <style type="text/css">
      body { margin: 20px; font-family: arial,verdana,helvetica; background: #fff;}
      h1 { font-size: 140%; font-weight:normal; color: #036; border-bottom: 1px solid #ccc; }
      canvas { border: 2px solid #000; float: left; margin-right: 20px; margin-bottom: 20px; }
      pre { float:left; display:block; background: rgb(238,238,238); border: 1px dashed #666; padding: 15px 20px; margin: 0 0 10px 0; }
    </style>
  </head>
  <body onload="draw();">
    <h1>A canvas <code>transform</code> example</h1>
    <div>
      <canvas id="canvas" width="300" height="400"></canvas>
      <pre>
function draw() {
  var canvas = document.getElementById("canvas");
  var ctx = canvas.getContext("2d");

  var i = 0;
  var sin = Math.sin(Math.PI/6);
  var cos = Math.cos(Math.PI/6);
  ctx.translate(200, 200);
  var c = 0;
  for (i; i <= 12; i++) {
    c = Math.floor(255 / 12 * i);
    ctx.fillStyle = "rgb(" + c + "," + c + "," + c + ")";
    ctx.fillRect(0, 0, 100, 10);
    ctx.transform(cos, sin, -sin, cos, 0, 0);
  }
  
  ctx.setTransform(-1, 0, 0, 1, 200, 200);
  ctx.fillStyle = "rgba(255, 128, 255, 0.5)";
  ctx.fillRect(0, 50, 100, 100);
}
      </pre>
    </div>
  </body>
</html>
